[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
51	/**/	53	/**/
52		54
…		…
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		62
61	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	65	#endif
64		66
65	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
67	#endif	73	#endif
68		74
69	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
71	#endif	77	#endif
…		…
107		113
108	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
111		117
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
113	ev_tstamp ev_now;
114	int ev_method;
115
116	static int have_monotonic; /* runtime */
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		119
122	/*****************************************************************************/	120	/*****************************************************************************/
123		121
124	ev_tstamp	122	typedef struct
		123	{
		124	struct ev_watcher_list *head;
		125	unsigned char events;
		126	unsigned char reify;
		127	} ANFD;
		128
		129	typedef struct
		130	{
		131	W w;
		132	int events;
		133	} ANPENDING;
		134
		135	#if EV_MULTIPLICITY
		136
		137	struct ev_loop
		138	{
		139	# define VAR(name,decl) decl;
		140	# include "ev_vars.h"
		141	};
		142	# undef VAR
		143	# include "ev_wrap.h"
		144
		145	#else
		146
		147	# define VAR(name,decl) static decl;
		148	# include "ev_vars.h"
		149	# undef VAR
		150
		151	#endif
		152
		153	/*****************************************************************************/
		154
		155	inline ev_tstamp
125	ev_time (void)	156	ev_time (void)
126	{	157	{
127	#if EV_USE_REALTIME	158	#if EV_USE_REALTIME
128	struct timespec ts;	159	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	160	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	164	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	165	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	166	#endif
136	}	167	}
137		168
138	static ev_tstamp	169	inline ev_tstamp
139	get_clock (void)	170	get_clock (void)
140	{	171	{
141	#if EV_USE_MONOTONIC	172	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	173	if (expect_true (have_monotonic))
143	{	174	{
…		…
146	return ts.tv_sec + ts.tv_nsec * 1e-9;	177	return ts.tv_sec + ts.tv_nsec * 1e-9;
147	}	178	}
148	#endif	179	#endif
149		180
150	return ev_time ();	181	return ev_time ();
		182	}
		183
		184	ev_tstamp
		185	ev_now (EV_P)
		186	{
		187	return rt_now;
151	}	188	}
152		189
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	190	#define array_roundsize(base,n) ((n) \| 4 & ~3)
154		191
155	#define array_needsize(base,cur,cnt,init) \	192	#define array_needsize(base,cur,cnt,init) \
…		…
167	cur = newcnt; \	204	cur = newcnt; \
168	}	205	}
169		206
170	/*****************************************************************************/	207	/*****************************************************************************/
171		208
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181
182	static void	209	static void
183	anfds_init (ANFD *base, int count)	210	anfds_init (ANFD *base, int count)
184	{	211	{
185	while (count--)	212	while (count--)
186	{	213	{
…		…
190		217
191	++base;	218	++base;
192	}	219	}
193	}	220	}
194		221
195	typedef struct
196	{
197	W w;
198	int events;
199	} ANPENDING;
200
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void	222	static void
205	event (W w, int events)	223	event (EV_P_ W w, int events)
206	{	224	{
207	if (w->pending)	225	if (w->pending)
208	{	226	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
210	return;	228	return;
…		…
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	233	pendings [ABSPRI (w)][w->pending - 1].w = w;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	234	pendings [ABSPRI (w)][w->pending - 1].events = events;
217	}	235	}
218		236
219	static void	237	static void
220	queue_events (W *events, int eventcnt, int type)	238	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	239	{
222	int i;	240	int i;
223		241
224	for (i = 0; i < eventcnt; ++i)	242	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	243	event (EV_A_ events [i], type);
226	}	244	}
227		245
228	static void	246	static void
229	fd_event (int fd, int events)	247	fd_event (EV_P_ int fd, int events)
230	{	248	{
231	ANFD *anfd = anfds + fd;	249	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	250	struct ev_io *w;
233		251
234	for (w = anfd->head; w; w = w->next)	252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	253	{
236	int ev = w->events & events;	254	int ev = w->events & events;
237		255
238	if (ev)	256	if (ev)
239	event ((W)w, ev);	257	event (EV_A_ (W)w, ev);
240	}	258	}
241	}	259	}
242		260
243	/*****************************************************************************/	261	/*****************************************************************************/
244		262
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	263	static void
249	fd_reify (void)	264	fd_reify (EV_P)
250	{	265	{
251	int i;	266	int i;
252		267
253	for (i = 0; i < fdchangecnt; ++i)	268	for (i = 0; i < fdchangecnt; ++i)
254	{	269	{
…		…
256	ANFD *anfd = anfds + fd;	271	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	272	struct ev_io *w;
258		273
259	int events = 0;	274	int events = 0;
260		275
261	for (w = anfd->head; w; w = w->next)	276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	277	events \|= w->events;
263		278
264	anfd->reify = 0;	279	anfd->reify = 0;
265		280
266	if (anfd->events != events)	281	if (anfd->events != events)
267	{	282	{
268	method_modify (fd, anfd->events, events);	283	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	284	anfd->events = events;
270	}	285	}
271	}	286	}
272		287
273	fdchangecnt = 0;	288	fdchangecnt = 0;
274	}	289	}
275		290
276	static void	291	static void
277	fd_change (int fd)	292	fd_change (EV_P_ int fd)
278	{	293	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	294	if (anfds [fd].reify \|\| fdchangecnt < 0)
280	return;	295	return;
281		296
282	anfds [fd].reify = 1;	297	anfds [fd].reify = 1;
…		…
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
286	fdchanges [fdchangecnt - 1] = fd;	301	fdchanges [fdchangecnt - 1] = fd;
287	}	302	}
288		303
289	static void	304	static void
290	fd_kill (int fd)	305	fd_kill (EV_P_ int fd)
291	{	306	{
292	struct ev_io *w;	307	struct ev_io *w;
293		308
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	309	while ((w = (struct ev_io *)anfds [fd].head))
296	{	310	{
297	ev_io_stop (w);	311	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	313	}
300	}	314	}
301		315
302	/* called on EBADF to verify fds */	316	/* called on EBADF to verify fds */
303	static void	317	static void
304	fd_ebadf (void)	318	fd_ebadf (EV_P)
305	{	319	{
306	int fd;	320	int fd;
307		321
308	for (fd = 0; fd < anfdmax; ++fd)	322	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	323	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
311	fd_kill (fd);	325	fd_kill (EV_A_ fd);
312	}	326	}
313		327
314	/* called on ENOMEM in select/poll to kill some fds and retry */	328	/* called on ENOMEM in select/poll to kill some fds and retry */
315	static void	329	static void
316	fd_enomem (void)	330	fd_enomem (EV_P)
317	{	331	{
318	int fd = anfdmax;	332	int fd = anfdmax;
319		333
320	while (fd--)	334	while (fd--)
321	if (anfds [fd].events)	335	if (anfds [fd].events)
322	{	336	{
323	close (fd);	337	close (fd);
324	fd_kill (fd);	338	fd_kill (EV_A_ fd);
325	return;	339	return;
326	}	340	}
327	}	341	}
328		342
329	/*****************************************************************************/	343	/*****************************************************************************/
330		344
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	345	static void
338	upheap (WT *timers, int k)	346	upheap (WT *heap, int k)
339	{	347	{
340	WT w = timers [k];	348	WT w = heap [k];
341		349
342	while (k && timers [k >> 1]->at > w->at)	350	while (k && heap [k >> 1]->at > w->at)
343	{	351	{
344	timers [k] = timers [k >> 1];	352	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	353	heap [k]->active = k + 1;
346	k >>= 1;	354	k >>= 1;
347	}	355	}
348		356
349	timers [k] = w;	357	heap [k] = w;
350	timers [k]->active = k + 1;	358	heap [k]->active = k + 1;
351		359
352	}	360	}
353		361
354	static void	362	static void
355	downheap (WT *timers, int N, int k)	363	downheap (WT *heap, int N, int k)
356	{	364	{
357	WT w = timers [k];	365	WT w = heap [k];
358		366
359	while (k < (N >> 1))	367	while (k < (N >> 1))
360	{	368	{
361	int j = k << 1;	369	int j = k << 1;
362		370
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	371	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	372	++j;
365		373
366	if (w->at <= timers [j]->at)	374	if (w->at <= heap [j]->at)
367	break;	375	break;
368		376
369	timers [k] = timers [j];	377	heap [k] = heap [j];
370	timers [k]->active = k + 1;	378	heap [k]->active = k + 1;
371	k = j;	379	k = j;
372	}	380	}
373		381
374	timers [k] = w;	382	heap [k] = w;
375	timers [k]->active = k + 1;	383	heap [k]->active = k + 1;
376	}	384	}
377		385
378	/*****************************************************************************/	386	/*****************************************************************************/
379		387
380	typedef struct	388	typedef struct
381	{	389	{
382	struct ev_signal *head;	390	struct ev_watcher_list *head;
383	sig_atomic_t volatile gotsig;	391	sig_atomic_t volatile gotsig;
384	} ANSIG;	392	} ANSIG;
385		393
386	static ANSIG *signals;	394	static ANSIG *signals;
387	static int signalmax;	395	static int signalmax;
388		396
389	static int sigpipe [2];	397	static int sigpipe [2];
390	static sig_atomic_t volatile gotsig;	398	static sig_atomic_t volatile gotsig;
391	static struct ev_io sigev;
392		399
393	static void	400	static void
394	signals_init (ANSIG *base, int count)	401	signals_init (ANSIG *base, int count)
395	{	402	{
396	while (count--)	403	while (count--)
…		…
407	{	414	{
408	signals [signum - 1].gotsig = 1;	415	signals [signum - 1].gotsig = 1;
409		416
410	if (!gotsig)	417	if (!gotsig)
411	{	418	{
		419	int old_errno = errno;
412	gotsig = 1;	420	gotsig = 1;
413	write (sigpipe [1], &signum, 1);	421	write (sigpipe [1], &signum, 1);
		422	errno = old_errno;
414	}	423	}
415	}	424	}
416		425
417	static void	426	static void
418	sigcb (struct ev_io *iow, int revents)	427	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	428	{
420	struct ev_signal *w;	429	struct ev_watcher_list *w;
421	int signum;	430	int signum;
422		431
423	read (sigpipe [0], &revents, 1);	432	read (sigpipe [0], &revents, 1);
424	gotsig = 0;	433	gotsig = 0;
425		434
…		…
427	if (signals [signum].gotsig)	436	if (signals [signum].gotsig)
428	{	437	{
429	signals [signum].gotsig = 0;	438	signals [signum].gotsig = 0;
430		439
431	for (w = signals [signum].head; w; w = w->next)	440	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);	441	event (EV_A_ (W)w, EV_SIGNAL);
433	}	442	}
434	}	443	}
435		444
436	static void	445	static void
437	siginit (void)	446	siginit (EV_P)
438	{	447	{
		448	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		451
442	/* rather than sort out wether we really need nb, set it */	452	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		455	#endif
445		456
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	457	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	458	ev_io_start (EV_A_ &sigev);
		459	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	460	}
449		461
450	/*****************************************************************************/	462	/*****************************************************************************/
451		463
452	static struct ev_idle **idles;	464	#ifndef WIN32
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];
464	static struct ev_signal childev;
465		465
466	#ifndef WCONTINUED	466	#ifndef WCONTINUED
467	# define WCONTINUED 0	467	# define WCONTINUED 0
468	#endif	468	#endif
469		469
470	static void	470	static void
471	childcb (struct ev_signal *sw, int revents)	471	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	472	{
473	struct ev_child *w;	473	struct ev_child *w;
		474
		475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		476	if (w->pid == pid \|\| !w->pid)
		477	{
		478	w->priority = sw->priority; /* need to do it now */
		479	w->rpid = pid;
		480	w->rstatus = status;
		481	event (EV_A_ (W)w, EV_CHILD);
		482	}
		483	}
		484
		485	static void
		486	childcb (EV_P_ struct ev_signal *sw, int revents)
		487	{
474	int pid, status;	488	int pid, status;
475		489
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	491	{
478	if (w->pid == pid \|\| !w->pid)	492	/* make sure we are called again until all childs have been reaped */
479	{	493	event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	494
481	event ((W)w, EV_CHILD);	495	child_reap (EV_A_ sw, pid, pid, status);
482	}	496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		497	}
483	}	498	}
		499
		500	#endif
484		501
485	/*****************************************************************************/	502	/*****************************************************************************/
486		503
		504	#if EV_USE_KQUEUE
		505	# include "ev_kqueue.c"
		506	#endif
487	#if EV_USE_EPOLL	507	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	508	# include "ev_epoll.c"
489	#endif	509	#endif
490	#if EV_USE_POLL	510	#if EV_USEV_POLL
491	# include "ev_poll.c"	511	# include "ev_poll.c"
492	#endif	512	#endif
493	#if EV_USE_SELECT	513	#if EV_USE_SELECT
494	# include "ev_select.c"	514	# include "ev_select.c"
495	#endif	515	#endif
…		…
504	ev_version_minor (void)	524	ev_version_minor (void)
505	{	525	{
506	return EV_VERSION_MINOR;	526	return EV_VERSION_MINOR;
507	}	527	}
508		528
509	/* return true if we are running with elevated privileges and ignore env variables */	529	/* return true if we are running with elevated privileges and should ignore env variables */
510	static int	530	static int
511	enable_secure ()	531	enable_secure (void)
512	{	532	{
		533	#ifdef WIN32
		534	return 0;
		535	#else
513	return getuid () != geteuid ()	536	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	537	\|\| getgid () != getegid ();
		538	#endif
515	}	539	}
516		540
517	int ev_init (int methods)	541	int
		542	ev_method (EV_P)
518	{	543	{
		544	return method;
		545	}
		546
		547	inline int
		548	loop_init (EV_P_ int methods)
		549	{
519	if (!ev_method)	550	if (!method)
520	{	551	{
521	#if EV_USE_MONOTONIC	552	#if EV_USE_MONOTONIC
522	{	553	{
523	struct timespec ts;	554	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	556	have_monotonic = 1;
526	}	557	}
527	#endif	558	#endif
528		559
529	ev_now = ev_time ();	560	rt_now = ev_time ();
530	now = get_clock ();	561	mn_now = get_clock ();
531	now_floor = now;	562	now_floor = mn_now;
532	diff = ev_now - now;	563	rtmn_diff = rt_now - mn_now;
533		564
534	if (pipe (sigpipe))	565	if (pipe (sigpipe))
535	return 0;	566	return 0;
536		567
537	if (methods == EVMETHOD_AUTO)	568	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	569	if (!enable_secure () && getenv ("LIBmethodS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	570	methods = atoi (getenv ("LIBmethodS"));
540	else	571	else
541	methods = EVMETHOD_ANY;	572	methods = EVMETHOD_ANY;
542		573
543	ev_method = 0;	574	method = 0;
		575	#if EV_USE_KQUEUE
		576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		577	#endif
544	#if EV_USE_EPOLL	578	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	580	#endif
547	#if EV_USE_POLL	581	#if EV_USEV_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	583	#endif
550	#if EV_USE_SELECT	584	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	586	#endif
553		587
554	if (ev_method)	588	if (method)
555	{	589	{
556	ev_watcher_init (&sigev, sigcb);	590	ev_watcher_init (&sigev, sigcb);
		591	ev_set_priority (&sigev, EV_MAXPRI);
557	siginit ();	592	siginit (EV_A);
558		593
		594	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	595	ev_signal_init (&childev, childcb, SIGCHLD);
		596	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	597	ev_signal_start (EV_A_ &childev);
		598	ev_unref (EV_A); /* child watcher should not keep loop alive */
		599	#endif
561	}	600	}
562	}	601	}
563		602
564	return ev_method;	603	return method;
565	}	604	}
		605
		606	#if EV_MULTIPLICITY
		607
		608	struct ev_loop *
		609	ev_loop_new (int methods)
		610	{
		611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
		612
		613	if (loop_init (EV_A_ methods))
		614	return loop;
		615
		616	ev_loop_delete (loop);
		617
		618	return 0;
		619	}
		620
		621	void
		622	ev_loop_delete (EV_P)
		623	{
		624	/TODO/
		625	free (loop);
		626	}
		627
		628	#else
		629
		630	int
		631	ev_init (int methods)
		632	{
		633	return loop_init (methods);
		634	}
		635
		636	#endif
566		637
567	/*****************************************************************************/	638	/*****************************************************************************/
568		639
569	void	640	void
570	ev_fork_prepare (void)	641	ev_fork_prepare (void)
…		…
579	}	650	}
580		651
581	void	652	void
582	ev_fork_child (void)	653	ev_fork_child (void)
583	{	654	{
		655	/TODO/
		656	#if !EV_MULTIPLICITY
584	#if EV_USE_EPOLL	657	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)	658	if (method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();	659	epoll_postfork_child (EV_A);
587	#endif	660	#endif
588		661
589	ev_io_stop (&sigev);	662	ev_io_stop (EV_A_ &sigev);
590	close (sigpipe [0]);	663	close (sigpipe [0]);
591	close (sigpipe [1]);	664	close (sigpipe [1]);
592	pipe (sigpipe);	665	pipe (sigpipe);
593	siginit ();	666	siginit (EV_A);
		667	#endif
594	}	668	}
595		669
596	/*****************************************************************************/	670	/*****************************************************************************/
597		671
598	static void	672	static void
599	call_pending (void)	673	call_pending (EV_P)
600	{	674	{
601	int pri;	675	int pri;
602		676
603	for (pri = NUMPRI; pri--; )	677	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	678	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	680	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		681
608	if (p->w)	682	if (p->w)
609	{	683	{
610	p->w->pending = 0;	684	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	685	p->w->cb (EV_A_ p->w, p->events);
612	}	686	}
613	}	687	}
614	}	688	}
615		689
616	static void	690	static void
617	timers_reify (void)	691	timers_reify (EV_P)
618	{	692	{
619	while (timercnt && timers [0]->at <= now)	693	while (timercnt && timers [0]->at <= mn_now)
620	{	694	{
621	struct ev_timer *w = timers [0];	695	struct ev_timer *w = timers [0];
622		696
623	/* first reschedule or stop timer */	697	/* first reschedule or stop timer */
624	if (w->repeat)	698	if (w->repeat)
625	{	699	{
626	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	700	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
627	w->at = now + w->repeat;	701	w->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	702	downheap ((WT *)timers, timercnt, 0);
629	}	703	}
630	else	704	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	705	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		706
633	event ((W)w, EV_TIMEOUT);	707	event (EV_A_ (W)w, EV_TIMEOUT);
634	}	708	}
635	}	709	}
636		710
637	static void	711	static void
638	periodics_reify (void)	712	periodics_reify (EV_P)
639	{	713	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	714	while (periodiccnt && periodics [0]->at <= rt_now)
641	{	715	{
642	struct ev_periodic *w = periodics [0];	716	struct ev_periodic *w = periodics [0];
643		717
644	/* first reschedule or stop timer */	718	/* first reschedule or stop timer */
645	if (w->interval)	719	if (w->interval)
646	{	720	{
647	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	721	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
648	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	722	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
649	downheap ((WT *)periodics, periodiccnt, 0);	723	downheap ((WT *)periodics, periodiccnt, 0);
650	}	724	}
651	else	725	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	726	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		727
654	event ((W)w, EV_PERIODIC);	728	event (EV_A_ (W)w, EV_PERIODIC);
655	}	729	}
656	}	730	}
657		731
658	static void	732	static void
659	periodics_reschedule (ev_tstamp diff)	733	periodics_reschedule (EV_P)
660	{	734	{
661	int i;	735	int i;
662		736
663	/* adjust periodics after time jump */	737	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	738	for (i = 0; i < periodiccnt; ++i)
665	{	739	{
666	struct ev_periodic *w = periodics [i];	740	struct ev_periodic *w = periodics [i];
667		741
668	if (w->interval)	742	if (w->interval)
669	{	743	{
670	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	744	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
671		745
672	if (fabs (diff) >= 1e-4)	746	if (fabs (diff) >= 1e-4)
673	{	747	{
674	ev_periodic_stop (w);	748	ev_periodic_stop (EV_A_ w);
675	ev_periodic_start (w);	749	ev_periodic_start (EV_A_ w);
676		750
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */	751	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}	752	}
679	}	753	}
680	}	754	}
681	}	755	}
682		756
683	static int	757	inline int
684	time_update_monotonic (void)	758	time_update_monotonic (EV_P)
685	{	759	{
686	now = get_clock ();	760	mn_now = get_clock ();
687		761
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	762	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	763	{
690	ev_now = now + diff;	764	rt_now = rtmn_diff + mn_now;
691	return 0;	765	return 0;
692	}	766	}
693	else	767	else
694	{	768	{
695	now_floor = now;	769	now_floor = mn_now;
696	ev_now = ev_time ();	770	rt_now = ev_time ();
697	return 1;	771	return 1;
698	}	772	}
699	}	773	}
700		774
701	static void	775	static void
702	time_update (void)	776	time_update (EV_P)
703	{	777	{
704	int i;	778	int i;
705		779
706	#if EV_USE_MONOTONIC	780	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	781	if (expect_true (have_monotonic))
708	{	782	{
709	if (time_update_monotonic ())	783	if (time_update_monotonic (EV_A))
710	{	784	{
711	ev_tstamp odiff = diff;	785	ev_tstamp odiff = rtmn_diff;
712		786
713	for (i = 4; --i; ) /* loop a few times, before making important decisions */	787	for (i = 4; --i; ) /* loop a few times, before making important decisions */
714	{	788	{
715	diff = ev_now - now;	789	rtmn_diff = rt_now - mn_now;
716		790
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	791	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	792	return; /* all is well */
719		793
720	ev_now = ev_time ();	794	rt_now = ev_time ();
721	now = get_clock ();	795	mn_now = get_clock ();
722	now_floor = now;	796	now_floor = mn_now;
723	}	797	}
724		798
725	periodics_reschedule (diff - odiff);	799	periodics_reschedule (EV_A);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	800	/* no timer adjustment, as the monotonic clock doesn't jump */
		801	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
727	}	802	}
728	}	803	}
729	else	804	else
730	#endif	805	#endif
731	{	806	{
732	ev_now = ev_time ();	807	rt_now = ev_time ();
733		808
734	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	809	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
735	{	810	{
736	periodics_reschedule (ev_now - now);	811	periodics_reschedule (EV_A);
737		812
738	/* adjust timers. this is easy, as the offset is the same for all */	813	/* adjust timers. this is easy, as the offset is the same for all */
739	for (i = 0; i < timercnt; ++i)	814	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	815	timers [i]->at += rt_now - mn_now;
741	}	816	}
742		817
743	now = ev_now;	818	mn_now = rt_now;
744	}	819	}
745	}	820	}
746		821
747	int ev_loop_done;	822	void
		823	ev_ref (EV_P)
		824	{
		825	++activecnt;
		826	}
748		827
		828	void
		829	ev_unref (EV_P)
		830	{
		831	--activecnt;
		832	}
		833
		834	static int loop_done;
		835
		836	void
749	void ev_loop (int flags)	837	ev_loop (EV_P_ int flags)
750	{	838	{
751	double block;	839	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	840	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		841
754	do	842	do
755	{	843	{
756	/* queue check watchers (and execute them) */	844	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	845	if (expect_false (preparecnt))
758	{	846	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	847	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	848	call_pending (EV_A);
761	}	849	}
762		850
763	/* update fd-related kernel structures */	851	/* update fd-related kernel structures */
764	fd_reify ();	852	fd_reify (EV_A);
765		853
766	/* calculate blocking time */	854	/* calculate blocking time */
767		855
768	/* we only need this for !monotonic clockor timers, but as we basically	856	/* we only need this for !monotonic clockor timers, but as we basically
769	always have timers, we just calculate it always */	857	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	858	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	859	if (expect_true (have_monotonic))
772	time_update_monotonic ();	860	time_update_monotonic (EV_A);
773	else	861	else
774	#endif	862	#endif
775	{	863	{
776	ev_now = ev_time ();	864	rt_now = ev_time ();
777	now = ev_now;	865	mn_now = rt_now;
778	}	866	}
779		867
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	868	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	869	block = 0.;
782	else	870	else
783	{	871	{
784	block = MAX_BLOCKTIME;	872	block = MAX_BLOCKTIME;
785		873
786	if (timercnt)	874	if (timercnt)
787	{	875	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	876	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
789	if (block > to) block = to;	877	if (block > to) block = to;
790	}	878	}
791		879
792	if (periodiccnt)	880	if (periodiccnt)
793	{	881	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	882	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
795	if (block > to) block = to;	883	if (block > to) block = to;
796	}	884	}
797		885
798	if (block < 0.) block = 0.;	886	if (block < 0.) block = 0.;
799	}	887	}
800		888
801	method_poll (block);	889	method_poll (EV_A_ block);
802		890
803	/* update ev_now, do magic */	891	/* update rt_now, do magic */
804	time_update ();	892	time_update (EV_A);
805		893
806	/* queue pending timers and reschedule them */	894	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	895	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	896	periodics_reify (EV_A); /* absolute timers called first */
809		897
810	/* queue idle watchers unless io or timers are pending */	898	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	899	if (!pendingcnt)
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	900	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		901
814	/* queue check watchers, to be executed first */	902	/* queue check watchers, to be executed first */
815	if (checkcnt)	903	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	904	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		905
818	call_pending ();	906	call_pending (EV_A);
819	}	907	}
820	while (!ev_loop_done);	908	while (activecnt && !loop_done);
821		909
822	if (ev_loop_done != 2)	910	if (loop_done != 2)
823	ev_loop_done = 0;	911	loop_done = 0;
		912	}
		913
		914	void
		915	ev_unloop (EV_P_ int how)
		916	{
		917	loop_done = how;
824	}	918	}
825		919
826	/*****************************************************************************/	920	/*****************************************************************************/
827		921
828	static void	922	inline void
829	wlist_add (WL *head, WL elem)	923	wlist_add (WL *head, WL elem)
830	{	924	{
831	elem->next = *head;	925	elem->next = *head;
832	*head = elem;	926	*head = elem;
833	}	927	}
834		928
835	static void	929	inline void
836	wlist_del (WL *head, WL elem)	930	wlist_del (WL *head, WL elem)
837	{	931	{
838	while (*head)	932	while (*head)
839	{	933	{
840	if (*head == elem)	934	if (*head == elem)
…		…
845		939
846	head = &(*head)->next;	940	head = &(*head)->next;
847	}	941	}
848	}	942	}
849		943
850	static void	944	inline void
851	ev_clear_pending (W w)	945	ev_clear_pending (EV_P_ W w)
852	{	946	{
853	if (w->pending)	947	if (w->pending)
854	{	948	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	949	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	950	w->pending = 0;
857	}	951	}
858	}	952	}
859		953
860	static void	954	inline void
861	ev_start (W w, int active)	955	ev_start (EV_P_ W w, int active)
862	{	956	{
		957	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		958	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		959
863	w->active = active;	960	w->active = active;
		961	ev_ref (EV_A);
864	}	962	}
865		963
866	static void	964	inline void
867	ev_stop (W w)	965	ev_stop (EV_P_ W w)
868	{	966	{
		967	ev_unref (EV_A);
869	w->active = 0;	968	w->active = 0;
870	}	969	}
871		970
872	/*****************************************************************************/	971	/*****************************************************************************/
873		972
874	void	973	void
875	ev_io_start (struct ev_io *w)	974	ev_io_start (EV_P_ struct ev_io *w)
876	{	975	{
877	int fd = w->fd;	976	int fd = w->fd;
878		977
879	if (ev_is_active (w))	978	if (ev_is_active (w))
880	return;	979	return;
881		980
882	assert (("ev_io_start called with negative fd", fd >= 0));	981	assert (("ev_io_start called with negative fd", fd >= 0));
883		982
884	ev_start ((W)w, 1);	983	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	984	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	985	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		986
888	fd_change (fd);	987	fd_change (EV_A_ fd);
889	}	988	}
890		989
891	void	990	void
892	ev_io_stop (struct ev_io *w)	991	ev_io_stop (EV_P_ struct ev_io *w)
893	{	992	{
894	ev_clear_pending ((W)w);	993	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	994	if (!ev_is_active (w))
896	return;	995	return;
897		996
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	997	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	998	ev_stop (EV_A_ (W)w);
900		999
901	fd_change (w->fd);	1000	fd_change (EV_A_ w->fd);
902	}	1001	}
903		1002
904	void	1003	void
905	ev_timer_start (struct ev_timer *w)	1004	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	1005	{
907	if (ev_is_active (w))	1006	if (ev_is_active (w))
908	return;	1007	return;
909		1008
910	w->at += now;	1009	w->at += mn_now;
911		1010
912	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1011	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
913		1012
914	ev_start ((W)w, ++timercnt);	1013	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	1014	array_needsize (timers, timermax, timercnt, );
916	timers [timercnt - 1] = w;	1015	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	1016	upheap ((WT *)timers, timercnt - 1);
918	}	1017	}
919		1018
920	void	1019	void
921	ev_timer_stop (struct ev_timer *w)	1020	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	1021	{
923	ev_clear_pending ((W)w);	1022	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	1023	if (!ev_is_active (w))
925	return;	1024	return;
926		1025
927	if (w->active < timercnt--)	1026	if (w->active < timercnt--)
928	{	1027	{
…		…
930	downheap ((WT *)timers, timercnt, w->active - 1);	1029	downheap ((WT *)timers, timercnt, w->active - 1);
931	}	1030	}
932		1031
933	w->at = w->repeat;	1032	w->at = w->repeat;
934		1033
935	ev_stop ((W)w);	1034	ev_stop (EV_A_ (W)w);
936	}	1035	}
937		1036
938	void	1037	void
939	ev_timer_again (struct ev_timer *w)	1038	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	1039	{
941	if (ev_is_active (w))	1040	if (ev_is_active (w))
942	{	1041	{
943	if (w->repeat)	1042	if (w->repeat)
944	{	1043	{
945	w->at = now + w->repeat;	1044	w->at = mn_now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1045	downheap ((WT *)timers, timercnt, w->active - 1);
947	}	1046	}
948	else	1047	else
949	ev_timer_stop (w);	1048	ev_timer_stop (EV_A_ w);
950	}	1049	}
951	else if (w->repeat)	1050	else if (w->repeat)
952	ev_timer_start (w);	1051	ev_timer_start (EV_A_ w);
953	}	1052	}
954		1053
955	void	1054	void
956	ev_periodic_start (struct ev_periodic *w)	1055	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1056	{
958	if (ev_is_active (w))	1057	if (ev_is_active (w))
959	return;	1058	return;
960		1059
961	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1060	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
962		1061
963	/* this formula differs from the one in periodic_reify because we do not always round up */	1062	/* this formula differs from the one in periodic_reify because we do not always round up */
964	if (w->interval)	1063	if (w->interval)
965	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1064	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
966		1065
967	ev_start ((W)w, ++periodiccnt);	1066	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1067	array_needsize (periodics, periodicmax, periodiccnt, );
969	periodics [periodiccnt - 1] = w;	1068	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1069	upheap ((WT *)periodics, periodiccnt - 1);
971	}	1070	}
972		1071
973	void	1072	void
974	ev_periodic_stop (struct ev_periodic *w)	1073	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1074	{
976	ev_clear_pending ((W)w);	1075	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1076	if (!ev_is_active (w))
978	return;	1077	return;
979		1078
980	if (w->active < periodiccnt--)	1079	if (w->active < periodiccnt--)
981	{	1080	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1081	periodics [w->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1082	downheap ((WT *)periodics, periodiccnt, w->active - 1);
984	}	1083	}
985		1084
986	ev_stop ((W)w);	1085	ev_stop (EV_A_ (W)w);
987	}	1086	}
988		1087
		1088	#ifndef SA_RESTART
		1089	# define SA_RESTART 0
		1090	#endif
		1091
989	void	1092	void
990	ev_signal_start (struct ev_signal *w)	1093	ev_signal_start (EV_P_ struct ev_signal *w)
991	{	1094	{
992	if (ev_is_active (w))	1095	if (ev_is_active (w))
993	return;	1096	return;
994		1097
995	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1098	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
996		1099
997	ev_start ((W)w, 1);	1100	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1101	array_needsize (signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1102	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1103
1001	if (!w->next)	1104	if (!w->next)
1002	{	1105	{
1003	struct sigaction sa;	1106	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1107	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1108	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1109	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1110	sigaction (w->signum, &sa, 0);
1008	}	1111	}
1009	}	1112	}
1010		1113
1011	void	1114	void
1012	ev_signal_stop (struct ev_signal *w)	1115	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1116	{
1014	ev_clear_pending ((W)w);	1117	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1118	if (!ev_is_active (w))
1016	return;	1119	return;
1017		1120
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1121	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1122	ev_stop (EV_A_ (W)w);
1020		1123
1021	if (!signals [w->signum - 1].head)	1124	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1125	signal (w->signum, SIG_DFL);
1023	}	1126	}
1024		1127
1025	void	1128	void
1026	ev_idle_start (struct ev_idle *w)	1129	ev_idle_start (EV_P_ struct ev_idle *w)
1027	{	1130	{
1028	if (ev_is_active (w))	1131	if (ev_is_active (w))
1029	return;	1132	return;
1030		1133
1031	ev_start ((W)w, ++idlecnt);	1134	ev_start (EV_A_ (W)w, ++idlecnt);
1032	array_needsize (idles, idlemax, idlecnt, );	1135	array_needsize (idles, idlemax, idlecnt, );
1033	idles [idlecnt - 1] = w;	1136	idles [idlecnt - 1] = w;
1034	}	1137	}
1035		1138
1036	void	1139	void
1037	ev_idle_stop (struct ev_idle *w)	1140	ev_idle_stop (EV_P_ struct ev_idle *w)
1038	{	1141	{
1039	ev_clear_pending ((W)w);	1142	ev_clear_pending (EV_A_ (W)w);
1040	if (ev_is_active (w))	1143	if (ev_is_active (w))
1041	return;	1144	return;
1042		1145
1043	idles [w->active - 1] = idles [--idlecnt];	1146	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);	1147	ev_stop (EV_A_ (W)w);
1045	}	1148	}
1046		1149
1047	void	1150	void
1048	ev_prepare_start (struct ev_prepare *w)	1151	ev_prepare_start (EV_P_ struct ev_prepare *w)
1049	{	1152	{
1050	if (ev_is_active (w))	1153	if (ev_is_active (w))
1051	return;	1154	return;
1052		1155
1053	ev_start ((W)w, ++preparecnt);	1156	ev_start (EV_A_ (W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );	1157	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;	1158	prepares [preparecnt - 1] = w;
1056	}	1159	}
1057		1160
1058	void	1161	void
1059	ev_prepare_stop (struct ev_prepare *w)	1162	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1060	{	1163	{
1061	ev_clear_pending ((W)w);	1164	ev_clear_pending (EV_A_ (W)w);
1062	if (ev_is_active (w))	1165	if (ev_is_active (w))
1063	return;	1166	return;
1064		1167
1065	prepares [w->active - 1] = prepares [--preparecnt];	1168	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);	1169	ev_stop (EV_A_ (W)w);
1067	}	1170	}
1068		1171
1069	void	1172	void
1070	ev_check_start (struct ev_check *w)	1173	ev_check_start (EV_P_ struct ev_check *w)
1071	{	1174	{
1072	if (ev_is_active (w))	1175	if (ev_is_active (w))
1073	return;	1176	return;
1074		1177
1075	ev_start ((W)w, ++checkcnt);	1178	ev_start (EV_A_ (W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );	1179	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;	1180	checks [checkcnt - 1] = w;
1078	}	1181	}
1079		1182
1080	void	1183	void
1081	ev_check_stop (struct ev_check *w)	1184	ev_check_stop (EV_P_ struct ev_check *w)
1082	{	1185	{
1083	ev_clear_pending ((W)w);	1186	ev_clear_pending (EV_A_ (W)w);
1084	if (ev_is_active (w))	1187	if (ev_is_active (w))
1085	return;	1188	return;
1086		1189
1087	checks [w->active - 1] = checks [--checkcnt];	1190	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);	1191	ev_stop (EV_A_ (W)w);
1089	}	1192	}
1090		1193
1091	void	1194	void
1092	ev_child_start (struct ev_child *w)	1195	ev_child_start (EV_P_ struct ev_child *w)
1093	{	1196	{
1094	if (ev_is_active (w))	1197	if (ev_is_active (w))
1095	return;	1198	return;
1096		1199
1097	ev_start ((W)w, 1);	1200	ev_start (EV_A_ (W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1201	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}	1202	}
1100		1203
1101	void	1204	void
1102	ev_child_stop (struct ev_child *w)	1205	ev_child_stop (EV_P_ struct ev_child *w)
1103	{	1206	{
1104	ev_clear_pending ((W)w);	1207	ev_clear_pending (EV_A_ (W)w);
1105	if (ev_is_active (w))	1208	if (ev_is_active (w))
1106	return;	1209	return;
1107		1210
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1212	ev_stop (EV_A_ (W)w);
1110	}	1213	}
1111		1214
1112	/*****************************************************************************/	1215	/*****************************************************************************/
1113		1216
1114	struct ev_once	1217	struct ev_once
…		…
1118	void (cb)(int revents, void arg);	1221	void (cb)(int revents, void arg);
1119	void *arg;	1222	void *arg;
1120	};	1223	};
1121		1224
1122	static void	1225	static void
1123	once_cb (struct ev_once *once, int revents)	1226	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1227	{
1125	void (cb)(int revents, void arg) = once->cb;	1228	void (cb)(int revents, void arg) = once->cb;
1126	void *arg = once->arg;	1229	void *arg = once->arg;
1127		1230
1128	ev_io_stop (&once->io);	1231	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1232	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1233	free (once);
1131		1234
1132	cb (revents, arg);	1235	cb (revents, arg);
1133	}	1236	}
1134		1237
1135	static void	1238	static void
1136	once_cb_io (struct ev_io *w, int revents)	1239	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1240	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1241	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1139	}	1242	}
1140		1243
1141	static void	1244	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1245	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1246	{
1144	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1247	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1145	}	1248	}
1146		1249
1147	void	1250	void
1148	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1251	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1149	{	1252	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1253	struct ev_once *once = malloc (sizeof (struct ev_once));
1151		1254
1152	if (!once)	1255	if (!once)
1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1256	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1158		1261
1159	ev_watcher_init (&once->io, once_cb_io);	1262	ev_watcher_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1263	if (fd >= 0)
1161	{	1264	{
1162	ev_io_set (&once->io, fd, events);	1265	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1266	ev_io_start (EV_A_ &once->io);
1164	}	1267	}
1165		1268
1166	ev_watcher_init (&once->to, once_cb_to);	1269	ev_watcher_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1270	if (timeout >= 0.)
1168	{	1271	{
1169	ev_timer_set (&once->to, timeout, 0.);	1272	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1273	ev_timer_start (EV_A_ &once->to);
1171	}	1274	}
1172	}	1275	}
1173	}	1276	}
1174		1277
1175	/*****************************************************************************/	1278	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs. Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC